907 results about "Raw material" patented technology

This invention relates to one kind of method to use abandoned grease to produce epoxy plasticizer, its characteristic lies in: Use the abandoned grease as raw materials, by pretreatment, the obtained glycerin ester to ester exchange respond with the methyl alcohol under alkali catalysis, then get fatty acidmethyl ester, then again with the peroxide organic acid, which is the reaction products of hydrogen peroxide and organic acid, to directly epoxy respond, get the raw epoxy fatty acid methyl ester, then wash off the acid by water, and obtain the epoxy fatty acid methyl ester by distillation and dehydration product. The raw material cost of this invention is low, originates broadly, conforms to the green environmental protection requirement, and the craft is simple, does not pollute environment, so it is the good substitute of petroleum product.

The invention relates to a 3D printing modified polyamino acid material. Raw materials for preparing the 3D printing modified polyamino acid material comprise, by weight, 75-85 parts of polyamino acid, 1-5 parts of a chain extender, 1-5 parts of a crosslinking agent, 0.5-1 part of a nucleating agent, 5-10 parts of a toughening agent, 0.1-0.5 parts of a thermal stabilizer, 1-5 parts of a reinforcing agent and 0.3-0.8 parts of an antioxidant. A low temperature crushing mixing reaction technology is used to modify polyamino acid, so the toughness, the impact strength and the thermal deformation temperature of the modified polyamino acid are greatly improved, thereby the polyamino acid material has a good application prospect in 3D printing.

Disclosed is a process for extracting xylose and xylitol from a xylose mother liquor or a xylose digest, which comprises, using xylose hydrolysate or xylose mother liquid as the raw material, removing glucose through saccharomyces cerevisiae fermentation, then imitating moving bed, using water as eluent, completely separating xylose from foreign matter such as arabinose, thus obtaining component containing rich xylose.

The method for preparing active carbon from bamboo raw material includes the following steps: (1). mao bamboo and waste produced by making bamboo wares are used as raw material, through cutting and screening, and screening bamboo scraps or screening bamboo scraps and making them form; (2). low temp. pyrogenic distillation carbonization of bamboo raw material in carbonization furnace, its pyrogenic distrillation carbonization temp. is 200-600 deg.C; (3). in the presence of micro oxygen placing the carbonized bamboo raw material into activating furnace and making activation by using superheatedsteam at high-temp., activating temp. is 400-850 deg.c; and (4) breaking or water washing activated active carbon, drying, sorting and sieving to obtain the invented product. Before carbonization thebamboo raw material can be soaked in mixed solution formed from zinc chloride and hydrogen peroxide or mixed solution formed from phosphoric acid and hydrogen peroxide. Its product not only possessesthe advantages of all the wooden active carbons, but also its methylthionine chloride decolouring power can be raised by 20%.

The invention relates to a cyclic production method of glyphosate, belonging to the technical field of pesticide production techniques. The production method comprises steps as follows: the raw material dimethyl phosphite is subjected to an alkyl ester method to obtain glyphosate and a glyphosate mother solution; the glyphosate mother solution is treated to obtain a secondary alkali mother solution; the secondary alkali mother solution is subjected to catalytic preoxidation, high-temperature high-pressure air electrocatalytic degradation and liquid membrane extraction to obtain a liquid membrane concentrated solution and a saliferous liquid membrane diluted solution; the liquid membrane concentrated solution is subjected to active carbon decoloration, concentration by evaporation, and high temperature polymerization to obtain sodium tripolyphosphate; the saliferous liquid membrane diluted solution is filtered by a nanofiltration membrane to obtain a membrane concentrated solution and a membrane diluted solution; the membrane concentrated solution returns to the catalytic preoxidation step to be recovered; the membrane diluted solution enters an MVR (mechanical vapor recompression) system to be subjected to concentration by evaporation, thereby obtaining sodium chloride crystal, distilled water and a mother solution; and the sodium chloride crystal, distilled water and mother solution are respectively utilized. The invention lowers the production cost, enhances the utilization ratio of the product, reduces the discharge of waste liquor in the glyphosate production procedure, is environment-friendly, and has obvious comprehensive economic benefit and social benefit.

The present invention belongs to the field of coal chemical technology, petrochemical technology and carbon material technology, and is preparation process of foamed carbon material with coal-base medium-temperature asphalt and petroleum-base intermediate-phase asphalt as material and through self reaction. The preparation process includes pulverizing and modifying asphalt material to form precursor; heating in reactor to form sticky fluid while releasing volatile gas to form foam; further raising temperature to solidify sticky fluid and settle foam; and final carbonizing at high temperature. The present invention has low production cost, high performance of the foamed carbon material, etc. and the product may be used in aeronautics, astronautics and other hi-tech fields.

The invention discloses an industrially-applicable method for preparing a polymer foamed material by using supercritical fluid technology, which comprises the following steps: 1) forming a polymer raw material to be foamed into raw blanks by melting, blending and cooling; 2) placing the raw blanks in a container, charging supercritical fluid into the container, and allowing the raw blanks to swell and the supercritical fluid to permeate into the raw blanks; and 3) initiating nucleation and foaming by controlling pressure relief rate and obtaining the closed micro pore polymer foamed material with uniform pore diameter and adjustable pore density. According to the invention, the process is simple, the production process is clean and environment-friendly, the efficiency is high, and the prepared foamed material has high mechanical performance and can be used in fields of transportation vehicles, building materials, packages and the like.

The invention discloses a method for processing high water content oyster instant food, which comprises the following: (1). a step of raw material pretreatment: fresh oyster meat is selected as a raw material, and cleaned and dried; (2). a step of blanching and dewatering: oyster meat treated according to the step 1 is dipped in boiled salt water for blanching and dewatering; (3). a step of seasoning: the oyster meat treated by the step 2 is picked up and put in season liquid for tasty seasoning and dipping seasoning while stirring; (4). a step of roasting: oyster meat treated by the step 3 is roasted and then cooled; and (5). the oyster meat treated by the step 4 is vacuum packaged and then sterilized in hot water. The product produced by the method has the advantages of having high water content, keeping original color luster and appearance of fresh oyster, lowering production cost and improving the added value of oysters.

The invention relates to a high quality production method of summer black tea. The method comprises the operational steps of: 1) picking; 2) withering; 3) rolling; 4) fermenting; 5) drying with gross fire; and 6) drying with complete fire. The method is improved in that a rocking operational step is added between the step 2) and the step 3). The rocking operational step comprises the steps of rocking for three times by using a tea speed regulation rocking machine, and accelerating fresh leaves to wither uniformly and cinch tea stripes compactly during rolling, and meanwhile to develop aroma of product tea, wherein the rocking rotating speed and standing time are in a trend of increase progressively. The method further comprises the steps of: after step 6), paving and wetting for 1 hour and roasting and extracting aroma; through the roasting process, green taste of rough tea is eliminated, the liquor color is red and strong, and the tea is sweet and has a scent with aroma of mature fruit, and sweet degree of taste is increased. By using summer fresh leaves as raw materials, the content of thearubigins is improved by 36.0-44.8% compared with summer black tea prepared by conventional processes, and types and content of high boiling point scent components are further remarkably improved.

The invention discloses a seafood flavoring and process for preparation. At present, seafood such as little fish, low-value fish and shellfish and the like can not be fully exploited and utilized, and the processing rate is lower than 30%, some of the seafood is directly thrown into sea areas as feedingstuff, which causes resource waste and sea-area pollution. The invention utilizes the method of biological enzymolysis to extract biological proteins and to produce various seafood flavorings by mixing the proteins with relative raw materials, which increases the utilization value of little fish, low-value fish and shellfish. The invention has the advantages of short enzymolysis time, high protein extract rate which can reach 60%, yield over 9.9%, moderate reaction condition, and lower production cost, which is suitable for industrial production.

The invention relates to an edible mushroom, spent mushroom substrate and probiotics-containing nutrient solution for livestock and poultry and a preparation method thereof. The preparation method comprises the following steps of: preparing leach liquor by using waste spent mushroom substrates as raw materials, extracting a plurality of active ingredients from the spent mushroom substrates, and then fermenting and preparing the nutrient solution containing a plurality of microorganisms beneficial for the growth of the livestock and poultry by using the leach liquor as a culture medium. The prepared nutrient solution is brown in color and tart, slightly has the incenses of edible mushrooms, and contains abundant probiotics groups so as to be beneficial for enhancing the appetite of the livestock and poultry and promoting the absorption of nourishment and the growth of the livestock and poultry. Compared with the solid fermentation of the conventional preparation method of spent mushroom substrate-containing feeds, due to the adoption of the main production method of liquid fermentation, the preparation method of the nutrient solution has the advantages of environmental protection, energy saving and convenient operation; and the obtained product is liquid so as to have the advantages of convenient application and favorable palatability for the livestock and poultry.

The invention belongs to the field of building material, which more particularly relates to a preparation method and application of a mineral admixture with high activity that takes wasted concrete as raw material. The preparation method of the mineral admixture with high activity comprises the following steps: (1) the wasted concrete is collected, the sundries are removed, and crushing equipment is used for processing concrete blocks into particle with diameter of being distributed in 2 to 40mm as recycled aggregate; (2) grinding or crushing equipment is used for striping and exfoliating the cement paste attached on the surface of the recycled aggregate, thus separating the formed powder with hardened cement stone and having diameter of 0.05 to 1mm to be the raw materials of the mineral admixture with high activity; (3) powder preparation equipment are used for processing the raw material further into superfine powder with Bertrand rate surface area not less than 600m<2>/Kg, that is the finished products of mineral admixture with high activity. The preparation method and application of a mineral admixture with high activity that takes wasted concrete as raw material has the advantages of good economy, high performance price ratio, large marketing need, good environmental protection and economy benefit, which has wide prospect for generalization and application.

The invention provides a sludge-based adsorbent used for desulfurization and demercuration of flue-gas and a preparation method thereof. The sludge-based adsorbent employs municipal sludge and/or papermaking sludge as a raw material. The preparation method comprises the following steps: adding an activator and a physical conditioning agent into sludge slurry and carrying out mixing under stirring and mechanical dehydration; carrying out grinding and screening after drying; and carrying out physical activation after pyrolysis in an inert atmosphere so as to prepare the sludge-based adsorbent. According to the invention, the sludge slurry is used as a raw material, and uniformity of the activator and the physical conditioning agent is improved by using a wet method and the means of mixing; the activator and the physical conditioning agent can reduce repulsive interaction and hydrophilic interaction among electronegative sludge particles, and a porous lattice structure with a hard texture and good permeability is formed in a sludge cake obtained after pressure filtration and dehydration; the prepared adsorbent can be used for desulfurization and demercuration of flue-gas; and the preparation method has the advantages of simple procedures, easily controllable conditions, capacity of realizing harmony and unity of sludge treatment and resource utilization and good economic benefits, environmental benefits and social benefits.

The invention discloses an antistatic polyfluortetraethylene film and a preparation method thereof, the method comprises the steps of: at first, utilizing 100 parts of polyfluortetraethylene powders and 1-20 parts of an antistatic agent to be admixed in a high-speed agitator, wherein, such an antistatic agent is a composite antistatic agent consisting of acetylene carbon black, graphite, metal conductive powders and the like; then preparing an antistatic polyfluortetraethylene film by means of mixing raw materials, prepressing and performing, sintering at high temperature, film forming by turning, trimming, winding and the like. The antistatic polyfluortetraethylene film prepared according to the invention has a permanent antistatic effect and can sufficiently dissipate the charges accumulated on the surface thereof owing to friction, the added antistatic agent powders can also cooperate and reinforce therewith to a certain extent, thus overcoming the characteristics of inferior abrasive resistance and low hardness, and improving the mechanical performance of the polyfluortetraethylene.

The invention belongs to the technical field of a refractory castable, and particularly relates to a castable for a blast-furnace tapping channel and a preparation method thereof. The castable comprises the following components: 55-80wt% of fused brown corundum, 8-21wt% of silicon carbide, 0.01-5wt% of carbon source, 2-8wt% of alpha-alumina micro powder, 1-7wt% of fused white corundum, 0.5-5wt% of silica powder, 1-5wt% of calcium aluminate cement, 0.3-4wt% of elemental silicon powder, 0.01-0.4wt% of water reducing agent, 0-0.2wt% of organic fibers and 0-0.2wt% of aluminum powder. The preparation method comprises the steps of dry-blending the components for 10-180 seconds, additionally adding water accounting for 4-6wt% of the raw materials, and stirring for 1-8 minutes so as to obtain the castable. Carbon nanotubes are introduced to the castable for the tapping channel so as to partially or totally replace spherical asphalt and be uniformly distributed in the castable, and can be filled into tiny gaps so as to improve the compactness of the castable, so that the anti-erosion and anti-scouring properties of the castable are improved, toxic smog formed in the process of baking the spherical asphalt is reduced, and the body injury of workers and the environmental pollution caused by the toxic smog are reduced; the castable has the characteristics of excellent properties, long service life and environmental friendliness.

The invention relates to a method for producing energy-saving sintered bricks from mud. The sintered brick is made from river mud, municipal sludge and sea mud as raw material, by mixing with silica-based inorganic binder at a certain proportion, ageing, extruding with a extrusion molding machine to obtain blanks, cutting the blanks with a cutter, drying, sintering and burning. The invention makes full use of mud and the additional amount of mud is high up to 50%. The invention realizes energy and resource conservation and helps develop the circular economy and realize the comprehensive utilization of resources. The produced energy-saving sintered brick has the advantages of high porosity and good heat-insulation effect. During the sintering process, the flue gas is circularly treated, the exhaust gas is treated with acidic and alkaline solutions to remove harmful substances (such as dioxin) from the exhaust gas, and harmful substances such as heavy metals are solidified, therefore, the whole production process and the final product do not cause environmental pollution or hazard.

An intelligent tissue mimicking ultrasonic phantom, which is a temperature-sensitive polymer gel having the following acoustic properties and other physical characteristics: acoustic velocity: 1500-1550 m/s; acoustic impedance: (1.50−1.60)×10⁶ Pa·s/m; density: 1.01-1.06 g/cm³; and a denaturation temperature, namely, a Lower Critical Solution Temperature (LCST) or a Volume Phase Transition Temperature at which the volume of the phantom changes, adjustable by changing the ratio of raw materials, around which there is a reversible phase transformation between the opaque phase and the transparent phase. Said gel can be a polymer of isopropylacrylamide (NIPA). Said ultrasonic phantom has a transparent appearance, and an adjustable thermal denaturation temperature; the thermal denaturation region of the ultrasonic phantom is distinct and has a well-defined boundary; the material of the phantom is stable and deterioration-resistant, and can ensure the consistency of the quality; the phantom is thermal denaturable with the appearance thereof turning white, while the phantom recovers when the heat is removed, such that it can be used repeatedly.

The invention provides a chicken meatball containing kudzu-vine root powder; the chicken meatball is composed of the following raw materials by weight parts: 50-70 parts of chicken breast, 20-30 parts of chicken skin, 2-4 parts of kudzu-vine root powder, 40-50 parts of ice water, 2-3 parts of salt, 1.5-2 parts of white granulated sugar, 3-4 parts of water-retaining agents, 8-10 parts of thickening agents and 2-3 parts of flavor enhancer; in the product, the kudzu-vine root powder which has multiple functions and high food therapy value is added, so as to improve the level of the chicken meat products, enrich the nutrition thereof and improve the health-care function.

The invention discloses a preparation method for a co-doped type and separately-coded type ZnInS/ZnS dual-emitter quantum dot. The preparation method comprises preparation of white-light emitting ZnInS:Ag/ZnS/ZnS:Mn/ZnS and ZnInS:Ag & Mn/ZnS/ZnS/ZnS nano materials, wherein by adopting a core-shell structure, the ZnInS:Ag/ZnS/ZnS:Mn/Zn nano material is synthesized by the following steps of: (1) preparing a color-adjustable ZnInS: Ag core; (2) carrying out core-covering on a first molar layer ZnS; and (3) adsorbing Mn ions and carrying out cover-covering on second and third molar layers; and for the preparation of the ZnInS:Ag & Mn/ZnS/ZnS/ZnS nano material, injecting time of a Mn precursor in the step (3) is advanced to injecting time of an S precursor in the step (1). The preparation method adopts a single-pot thermal injection process, is simple in process, easy to operate, capable of being completed in common chemical laboratories, and easy to popularize; and raw materials are convenient to supply, and are low in price.

The invention discloses anti-corrosion concrete applied to a sulfate bittern environment as well as a preparation and construction technology thereof. The concrete comprises the following raw materials: light calcined magnesia, magnesium sulfate, water, aggregate, a mineral admixture and an additive. Through mutual effect among the components of the concrete and with the sulfate bittern environment with specific salt type and concentration, the concrete can be condensed and hardened, generated, developed and strength-maintained in sulfate saline soil, sulfite saline oil or bittern environment in a wet state with specific salt type and concentration or below the underground water level. The concrete disclosed by the invention is applied to the sulfate bittern environment and can meet the requirements of concrete strength and durability of structures and components.